EN 12480-2018 Gas meters - Rotary displacement gas meters.pdf
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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Gas meters Rotary displacement gas metersBS EN 12480:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12480 February 2018 ICS 91.140.40 Supersedes EN 12480:2015English Version Gas meters - Rotary displacement ga
2、s meters Compteurs de gaz - Compteurs de gaz dplacement rotatif Gaszhler - Drehkolbengaszhler This European Standard was approved by CEN on 15 November 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
3、 status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, Frenc
4、h, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria,
5、Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
6、Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Me
7、mbers. Ref. No. EN 12480:2018 ENational forewordThis British Standard is the UK implementation of EN 12480:2018. It supersedes BS EN 12480:2015, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GSE/25, Gas Meters.A list of organizations represented on t
8、his committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 95510 5IC
9、S 91.140.40Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1
10、2480:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12480 February 2018 ICS 91.140.40 Supersedes EN 12480:2015English Version Gas meters - Rotary displacement gas meters Compteurs de gaz - Compteurs de gaz dplacement rotatif Gaszhler - Drehkolbengaszhler This European Standard was approved
11、 by CEN on 15 November 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national s
12、tandards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language an
13、d notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hunga
14、ry, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG C
15、EN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12480:2018 EBS EN 12480:2018EN 12480:2018 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative refe
16、rences 5 3 Terms, definitions, symbols and abbreviations 11 3.1 Terms and definitions 11 3.2 Symbols and abbreviations 15 4 Operating range 15 4.1 General . 15 4.2 Flow rate range (conformity/individual) 15 4.3 Operating pressure range (conformity/individual) 16 4.4 Operating temperature range (conf
17、ormity/individual) 16 5 Metrological performance 16 5.1 General . 16 5.2 Error of indication (conformity/individual) 16 5.3 Pressure loss (conformity/individual) 18 5.4 Metrological repeatability (conformity) . 18 5.5 Operating pressure (conformity/individual) 19 5.6 Temperature ranges (conformity)
18、19 5.7 Condensing ambient conditions (conformity). 21 5.8 Bidirectional meters (conformity) 21 5.9 Influence of oil filling (conformity) . 21 6 Design and manufacturing 21 6.1 General (conformity/individual) . 21 6.2 Material 22 6.3 Robustness 25 6.4 Transportation and storage (conformity/individual
19、) 29 6.5 Connections (conformity) . 30 6.6 Pressure and temperature tappings (conformity) 30 6.7 Manufacturing . 31 7 Meter output (conformity) . 32 7.1 Index . 32 7.2 Index window 33 7.3 Output drive shafts 34 7.4 Pulse generators . 37 8 Durability (conformity) . 39 8.1 Requirements 39 8.2 Tests 39
20、 9 Marking, labelling and packaging (conformity/individual) . 39 9.1 General . 39 9.2 Direction of flow . 40 9.3 Pressure tappings 40 9.4 Durability and legibility of marking 40 10 Documentation (conformity) . 40 BS EN 12480:2018EN 12480:2018 (E) 3 10.1 General . 40 10.2 Documentation related to the
21、 manufacturers tests 40 10.3 Declaration of conformity . 41 10.4 Instruction manual 41 Annex A (normative) Pattern approval . 42 Annex B (normative) Individual meter testing 44 Annex C (normative) Resistance to high temperature . 45 C.1 General . 45 C.2 Requirements . 45 C.3 Test 45 C.4 Marking 47 A
22、nnex D (normative) Compliance evaluation for gas meters 48 D.1 General . 48 D.2 Quality Management System 48 Annex E (normative) Non-destructive testing (NDT) . 49 Annex F (normative) Materials for pressurized parts . 51 Annex G (normative) Additional tests for meters to be used in open locations .
23、63 G.1 General . 63 G.2 Weathering . 63 Annex H (normative) Meter family . 64 H.1 Definition of meter family . 64 H.2 Criteria for grouping meters together in order to form a family 64 Annex ZA (informative) Relationship between this European Standard and the essential requirements of EU Directive 2
24、014/32/EU aimed to be covered 65 Annex ZB (informative) Relationship between this European Standard and the essential requirements of EU Directive 2014/68/EU aimed to be covered . 70 Bibliography . 72 BS EN 12480:2018EN 12480:2018 (E) 4 European foreword This document (EN 12480:2018) has been prepar
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